Related Experiment Video
Updated: Oct 9, 2025

09:14
An In Vitro System to Study Tumor Dormancy and the Switch to Metastatic Growth
Published on: August 11, 2011
16.0K
Autophagy and Hepatic Tumor Microenvironment Associated Dormancy.
Yunus Akkoc1, Devrim Gozuacik2,3
1Koç University Research Centre for Translational Medicine (KUTTAM), Istanbul, 34010, Turkey. yakkoc@ku.edu.tr.
Journal of Gastrointestinal Cancer
|December 18, 2021
Summary
Cancer cells can remain dormant after treatment, evading the immune system and therapy. Autophagy and the liver microenvironment may play crucial roles in the survival and re-activation of these dormant disseminated tumor cells.
Area of Science:
- Oncology
- Cell Biology
- Immunology
Background:
- Cancer treatment aims for complete eradication, but dormant disseminated tumor cells (DTCs) can persist post-therapy.
- These dormant DTCs can reactivate years later, leading to cancer recurrence.
- The liver microenvironment is implicated in supporting cancer cell dormancy.
Purpose of the Study:
- To review the phenomenon of cancer dormancy.
- To explore the role of autophagy in the survival and reactivation of dormant DTCs.
- To discuss the significance of the hepatic microenvironment in cancer cell dormancy.
Main Methods:
- Literature review synthesizing existing research on cancer dormancy, autophagy, and the liver microenvironment.
- Analysis of studies investigating cellular stress responses and microenvironmental influences on cancer cell survival.
- Integration of findings to hypothesize the interplay between autophagy and hepatic factors in dormancy.
Main Results:
- Autophagy is a stress response mechanism potentially aiding DTC adaptation and survival in foreign microenvironments.
- The hepatic microenvironment offers conditions conducive to cancer cell dormancy.
- While direct evidence is lacking, autophagy's known roles in liver health and disease suggest its involvement in liver-assisted dormancy.
Conclusions:
- Autophagy may be a key factor in the survival and potential reactivation of dormant cancer cells.
- The liver microenvironment plays a significant role in facilitating cancer cell dormancy.
- Further research is needed to elucidate the specific mechanisms of autophagy in liver-assisted cancer dormancy.
More Related Videos
Related Concept Videos
Autophagy
4.8K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.8K
The Tumor Microenvironment
6.9K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.9K
Cancer Stem Cells and Tumor Maintenance
5.1K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
5.1K
mTOR Signaling and Cancer Progression
3.9K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.9K
Delivery Pathways to the Lysosome
8.1K
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
8.1K
Tumor Progression
6.6K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.6K

